Pingdom’s free website speed testing tool not only looks great, but also gives you all the information you need to know about your site’s performance — load time, page size, a detailed page analysis, and more.

As its name suggests, Google PageSpeed Insights provides you with insights about your website’s speed. This free tool will tell you about the performance issues it finds on your site, as well as give your site a performance grade.

GTmetrix is awesome because it also tests your site with YSlow (which is generally only available as a browser extension or a command line tool). Also, the tool allows you to download your results as a PDF, which might be useful.

What’s Your Favorite Website Speed Testing Tool?

There are lots of tools that can test your website’s speed and performance. After reviewing a lot of these tools, I picked the top five online website speed testing tools I could find and discussed them above.